A device for overmolding fragile hollow products

Abstract

The invention discloses a device for overlapping injection molding of fragile hollow products. The pump body, the motor slot seat, the load-bearing base, and the syringe injection molding device are mechanically connected to the gas collection valve through the air pipe cover. The gas collection valve is inserted on the axis of the air pipe cover and penetrates each other. Equipped with a pneumatic cylinder group, a lifting device, a ratchet mechanism, a traction device, a deceleration mechanism, a shaft device, an impact mechanism, and a needle cylinder device, it realizes the effect of the injection molding machine combined with the needle cylinder push, effectively controls the pressure output of the inner space, and limits The pressure is within the tolerance range of the hollow product, and the output of the needle cylinder is fine-caliber, embedded in the product for injection molding, and the dust and particle impurities disturbed by the air are isolated, and the injection molding is uniformly covered from the inside to achieve saturation, filling the entire product, and avoiding the fragility caused by the internal gap Hidden dangers, efficient control of pressure and output flow.

Description

technical field [0001] The invention relates to equipment for overlapping injection molding fragile hollow products, which belongs to the field of injection molding equipment. Background technique [0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products with plastic molding molds. It is divided into vertical, horizontal, and all-electric types. The injection molding function Heating the plastic and applying high pressure to the molten plastic to make it inject and fill the mold cavity. The vertical injection molding machine commonly used in the current technology has a relatively high injection pressure for fragile hollow products. Pressing down by self-weight, unloading force left and right in the fragile hollow product and pushing the product, vertical large-scale injection molding materials will also cause air d...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a device for overmolding fragile hollow products, so as to solve the problem that the injection pressure of vertical injection molding machines for fragile hollow products is too high, and the pressure drop injection molding method is often used. As a result, during the injection molding process, the material is pressed down by its own weight, and the fragile hollow product is unloaded left and right to push the product, and the vertical large-scale injection molding material will also cause air dust and particles to be mixed in, and the processing of impurities will cause the hollow product to have insufficient internal plumpness. There is a gap, and the problem of crushing and breaking

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